WILLISTON, Vt. (AP) — Police in Vermont say a Massachusetts man is dead after his car went off Interstate 89 in Williston and struck a ledge.

Police say the man — the only occupant of the southbound vehicle — was pronounced dead at the scene.

The accident occurred at about 6:30 Sunday morning.

Police are not releasing the man's name pending notification of his family.

Authorities say the investigation is ongoing and that speed does not have been a factor. The man was not wearing a seatbelt, according to the police report.